Went to a couple parks yesterday, a lot of change but not any real good jewelry. Stopped digging all the pull tabs at 27-28 vdi #s. after about the 30-40 one. The bottle caps have a very distinct tone and stopped digging them too. Set the recovery Speed at 7 and focused on shallow targets only. Allot easier to retrieve targets at the beach with a sand scoop, my back is soar as hell, at 70 , a lot harder on your body compared to when I was younger. I probably missed a ring or two by not digging the 27-28 vdi numbers, just too much work for a lousy pull tab.